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I have recently started a recovery on my 5-drive RAID in my file-server, and it says it'll take 691+ minutes to complete. I was wondering what would happen to the process if the machine lost power - say in a blackout? Would I need to restart the recovery process again? Would I lose the whole RAID of data?

Also, what would happen if I was in the process of growing the RAID and the power went out?

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up vote 4 down vote accepted

A normal shutdown is well managed by mdadm, but a blackout (as always) may be tragic.

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If I shut it down (or more likely, my wife decides to shut it down) would it mean I need to restart the recovery/growth of the array, or would the next boot of the machine resume it from where it left off? –  phalacee Jul 28 '10 at 15:48
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The recovery/growth will start all over again. –  Jasper Jul 28 '10 at 18:04
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